Emasculator



Jan. 23, 1940.

D. El; KING 2,187,881

EMASCULATOR Filed May 3l, 1938 llllllllll //a7 I 7 NS! DALE 5. /V/A/G,

' INVUXL- BY ATTORN Patented Jan. 23, 1940 UNITED STATES PATENT oFFicE EMAscULA'roR Dale B. King, Piru, Calif. v Application May 31, 193s, serial No. 216,954

3 Claims.

This invention relates to that type of instrulment for emasculating animals wherein emasculation is effected by severing the spermatic cord or by crushing a section of the cord so completely vthat nature will not renew the functioning thereofthis being donewithout the use of a knife and Without it being necessary to cutv open the pouch wherein the testicles are contained. A result of crushing or severing the spermaticcord as above stated, is to cause, the testicles to'atrophy, a permanent sterilizing consequently'being effected of the animal upon which the operation is performed. i Itis an object of this invention to provide an emasculating instrument of the above stated kind wherein the cutting or crushing action will be conned as nearly as possible to the spermatic cord itself, instead of there also being a crushing and bruising of so much of the tissue adjacent to the cord as it has heretofore been found necessary to damage seriously by the use ofcertain animal castrating instruments nowon the market.

yAnother object ofv this invention is to provide a castrating implement which will be more easily .operable byreason of the fact that the crushing or` destroying action of the tool is concentrated more closely upon opposite sides of the particular area of the scrotum which overlies the spermatic cord, instead of being distributed over alarger areal of the portion of the reproductive organs being operated upon.

Yet another object of the invention is to provide `a castrating instrument which can be operated in a more accurate and dependable manner by reason 'of being furnished with an improved means for holding the spermatic cord in proper position for being operated upon until the gripping action of the instrument; is applied to it with a sufiicient force to sever or crush a section of it to the extent necessary to perform an efficient castration. Y

Other objects, advantagesand features of invention will hereinafter appear. Referring to the accompanying drawing, which illustrates what is at present deemed to be a preferred'embodiment of the invention:

I Fig. l is a perspective view of the complete instrument showing the gripping jaws thereof in the open position.

Fig. 2 is a view thereof partly in side elevation and partly in longitudinal mid-section, the handle portions being broken away in order to contract the View, parts are also broken away to show underlying parts more clearly. The jaws areopen in this view and between them is shown kin section of a lateral portion of an animals scrotum and wherein the-spermatic cord is being held opposite to the part of the instrument which is constructed for severing it.

Fig.k3 is a view similar to Fig. 2 except that ,n

jaw assembly 8 which is furnished with a guidev sleeve or band 9 that lits around the straight portion of the shank 6 with a working t.

The deflected portion "I of said shank is continued at its inner end into the arm or handle III. With said arm Ill cooperates a movable jaw arm II which is pivotally connected at I2 with the deflected shank portion-l. The short end of the lever aiorded by said arm I I is pivotally connected withone .end of a link I3 by means of a pivot I4, this portion .of the arm vII being shown reinforced and bifurcated by reason of having secured to opposite sides of it the strips Ila. At

its Opposite end said link is shown bifurcated, the

I6 carried by a slidable plate Il, a pivot I8 serving to connect the `biiurcated end of said link with said ear.

Describing more fully the plate or slide I'I, the

fao

ybifurcations I5 thereof passingy astride an ear sleeve or loop 9 has itsside portions extended to e form parallel guide plates v20 between which said Vslide I1 has a working iit,a spacing strip 2I being fitted between the end portions of said plates 20 and held in this position by the rivetsi 22 in order Vto complete the guiding means 'for said slide I'I. Said spacer strip 2| is furnished with a projecting end portion 23 positioned to aid in the emasculating operation as will be more fully understood when the operation of the device is described.

The slide I1 is L-shaped, havig one limb I 'Ia which extends along the inner edge of the spacing strip 2I and having another limb I'Ib which approximately contacts With the adjacent edge portion of the jaw shank 6. Said limb I'Ia has a longitudinal guide slot 25 along approximately its mid-width, and a guide p in 26, the end portions of which are xed in the plates 20, extending through said slot. The jaw edge of said limb Ila is rounded as shown at I 1:1: in Fig. 4 to give it more of a cutting action.

The plates 20 also have secured between them an auxiliary jaw member 21 consisting of a block or spacing plate a part of which projects from between said plates toward the stationary jaw 5. Said member 21 is shown held in place by rivets 28 which are carried by the plates 20.

The addition of said jaw block 21 to the structure previously described results in a rectangular space 29 being formed within the angle demarked by the arms I1a and I1 of the slidable L-shaped jaw member I1. laminated S-shaped leaf spring 3f) which acts between the arm I1b and the auxiliary jaw member 21.

Through the portion of the lever arm I I which is reinforced by the strips I Ia, extends an vadjustable stop screw 3I furnished with a milled head 32. Said screw is adjusted to arrest the swing of the levers IG and II toward each other when the cord-severing operation has proceeded to a completion, so far as obtaining the desired result is concerned.

In Fig. 2 a portion 35 of an animals scrotum is shown, the operator having brought the cord 36 into a position opposite to the gap between the auxiliary jaw portions 26 and 21 and in Figs. 3 and 4 the jaw elements are shown as closely approximated as is necessary to successfully perform the operation, the stop screw 3I preventing further crushing of the tissues, which would be unnecessary and undesirable.

It will be seen that the working face of the movable jaw assembly has a length considerably greater than its width, and that the end portions of said face are formed by the jaw elements 23 and 21 that are yieldable in relation to the intermediate jaw members I1.

In the operation of the device, to castrate a bull, for example, the animal is rst thrown or else placed in the proper handling stocks. The operator will then take the scrotum in hand and while holding it in such a manner as to bring one of the spermatic cords near to an edge portion of the sac will insert such edge portion thereof between the opened jaws of the instrument and close to the body of the animal. Then while the spermatic cord is kept opposite to the space between the jaw elements 23 and 21 of the movable jaw assembly, the movable lever arm II is operated thus causing the movable jaw assembly to approach the stationary jaw assembly. As this jaw assembly approaches the stationary jaw, such jaw elements 23 and 21 contact with the scrotum at each side of the spermatic cord and under the urge of spring 30 will contactiirmlywiththetissue of the scrotum before, under a further movement of said arm II and the limb of the movable jaw assembly begins to move outwardly in relation to the jaw elements between which it is located. Hence the section of the spermatic cord opposite t0 the movable jaw assembly will be efliciently held in the proper position for having a section of it crushed by the jaw element I1a when the lever arm II is moved thru the remaining portion of its travel.

However, the final closing movement of said arm I I will not crush the tissue of the scrotum at either side (upper or lower side as viewed in the drawing) of the spel-matic cord, for the stop screw 3| will be set to arrest the closing movement of the movable jaw assembly element I1a just a little before it can contact with the stationary jaw, as shown inv Fig. 3. The instrument Within said space is placed a;-

is then removed and reapplied to the scrotum at the opposite side thereof and the same operation is performed upon the spermatic cord of the other testicle.

It will be seen that in using this instrument the tissue of the scrotum is bruised only over the two small areas where is overlies each spermatic cord. Hence emasculation is performed in as humane a manner as can be expected in using an instrument of this class. Also there is so little interference with the free circulation of blood to and from the injured area that rapid healing ensues as well as a speedy atrophy of the testicles. No open wound is left, which if produced, might become infected.

The guide pin 26, carried by the plates 20 of the sleeve member 9 is contacted by the outer end of the slot 25 when the movable lever arm II is swung suiiiciently far from the stationary arm Ill to retract the L-shaped jaw member I1 a short distance. Then a farther swing of said arm I I will cause said pin to retract the jaw elements 23 and 21 to the fully opened position shown in Fig. 2.

It should be understood that the present disclosure is for the purpose of illustration only and that this invention includes all modifications and equivalents which fall within the scope of the subject matter claimed.

What is claimed is:

l. In an instrument of the kind described, a stationary lever arm having a deflected end portion which forms a stationary jaw, a sleeve member having a working fit upon said lever arm adjacent to said jaw, said sleeve member comprising an elongated plate so bent at its midlength as to provide spaced apart parallel end portions which project laterally from said lever arm in the same direction as said jaw, said projecting plate portions having secured between them two spacing plates, said spacing plates being themselves'spaced apart andboth of them projecting beyond the side of said sleeve member which is nearest to said stationary jaw, the projecting portions of said spacing plates forming auxiliary jaw elements of a movable jaw assembly, an intermediate jaw element forming part of said movable jaw assembly having a project ing limb, the working face of said intermediatel jaw element reciprocating in the space between said auxiliary jaw elements, spring means interposed between one of said auxiliary jaw elements and said limb of said intermediate jaw element,

said spring normally yieldingly maintaining said auxiliary jaw elements in an advanced position in relation to said intermediate jaw element, and a movable lever arm pivotally connected with said stationary lever arm and operatively connected with said intermediate jaw element.

2. In an instrument of the kind described, a stationary lever arm carrying a stationary jaw, said jaw having a attened shank portion connecting it with said arm, a movable jaw assembly operatively related to said stationary jaw, said jaw assembly comprising an elongated plate bent into a U-shape thus forming a loop the base portion of which fits around said shank with a working fit,"an inner spacing plate secured between the side portions of said bent plate, said spacing plate having a working contact with the edge portion of said shank which is opposite to the base of said loop, an edge portion of said spacing plate projecting from between the space embraced by said bent plate and toward said stationary jaw thus forming part'of the working feo face portion of said movable jaw assembly, an

outer spacing plate secured between the end portions of said bent plate, said outer spacing plate likewise having a projecting portion which forms a part of the working iace of the movab-le jaw assembly, an intermediate movable jaw element having a working mounting between said spacing plates, said jaw element having a limb directed toward the aforementioned jaw shank, a spring interposed between said limb and inner spacing plate, and a movable lever arm pivctally connected with said stationary lever arm and operatively connected with said intermediate jaw element.

3. In an instrument of the kind described, a stationary jaw, a movable jaw assembly comprising relatively movable jaw portions, each of said jaws being mounted in a relation suited to gripping between them the spermatic cord and overlying scrotum portion of any animal to vbe castrated, said movable jaw portions comprising normally projecting yieldable parts positioned to straddle the spermatic cord and apply yielding pressures to the scrotum as said assembly and movable jaw portions are moved toward said stationary jaw, whereby to place the spermatic cord in position for crushing, a substantially unyieldable part intermediate said yieldable parts to apply a' crushing pressure to a section of the spermatic cord, and means to operate said jaws for the yintended purpose.

' A l f DALE B. KING. 

